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CreatorTitleDescriptionSubjectDate
26Kestle, John R. W.Cerebrospinal fluid shunt technologySince the invention of the first implantable shunt valve by Nulsen and Spitz (12) almost 50 years ago, there has been a remarkable number of ingenious modifications and new designs of shunt equipment to treat pediatric hydrocephalus. These developments were in response to the immediately evident hi...Shunt technology; Valve design2000
27Beckerle, Mary C.Characterization of the interaction between zyxin and members of the Ena/Vasodilator-stimulated Phosphoprotein family of proteinsZyxin contains a proline-rich N-terminal domain that is similar to the C-terminal domain in the ActA protein of the bacteria, Listeria monocytogenes. We screened the entire amino acid sequence of human zyxin for Menainteracting peptides and found that, as with ActA, proline-rich sequences were the s...Zyxin; Actin; Listeria monocytogenes; Proline-rich repeats; Cell spreading2000
28Miller, Joel StevenCluster glass state and photoinduced effects on the freezing dynamics in KxCo[Fe(CN)6]y.ZH2O (x-0.16,y-0.72, z-4.4)The magnetic properties and photoinduced magnetization of a Prussian blue analog, KxCo[Fe(Cn)6]y•ZH2O (x-0.16, y-0.72, z-4.4) were systematically studied. The frequency dependence of the linear ac susceptibility, the irreversibility in the field-cooled/ zero-field-cooled magnetization (MFC /MZFC)...Hexacyanide; Illumination; Temperatures2000
29Mcpherson, Brian JamesCO2 sequestration in deep aquifersDisposal and long-term sequestration of anthropogenic "greenhouse gases" such as CO2 is a proposed approach to reducing global warming. Deep, regional-scale aquifers in sedimentary basins are possible sites for sequestration, given their ubiquitous nature. We used a mathematical sedimentary basin m...2000
30Armentrout, Peter B.Collision-induced dissociation dynamics of the [OCS • C2H2]+ complex. A combined experimental and theoretical studyCollision-induced dissociation (CID) of the [OCS • C2H2]+ complex ion with both Xe and Ar over an energy range of 0 to 10 eV in the center of mass frame is studied using a guided ion beam tandem mass spectrometer. The cross sections of the ionic products observed (C,H2S+, OCS+, C2HJ, and S+) are ...Collision-induced dissociation; Competitive shift; Ethylene Sulfide cation; Kinetic shift; Thioketene cation; Potential energy surface2000
31Truong, ThanhCombined reaction class approach with integrated molecular orbital + molecular orbital (IMOMO) methodology: a practical tool for kinetic modelingWe present a new practical computational methodology for predicting thermal rate constants of reactions involving large molecules or a large number of elementary reactions in the same class. This methodology combines the integrated molecular orbital1molecular orbital (IMOMO) approach with our rece...IMOMO; Kinetic modeling; Thermal rate constants2000
32Wight, Charles AlbertCompetitive vaporization and decomposition of liquid RDXThe thermal decomposition of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) has been studied by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Activation energies as a function of the extent of conversion, ?, have been determined by model-free isoconversional analysis o...Liquid RDX; Competitive vaporization; Thermal decomposition; Differential scanning calorimetry2000
33Johnson, Christopher R.Computer simulation and visualization in medicineThe goals of medical simulation and visualization are multifaceted. While some simulations and visualizations facilitate diagnosis, others help physicians plan surgery, therapy, and other forms of treatment. Still other simulation and visualization techniques are used for medical training and to acq...Technology; Computer assisted instruction; Computer graphics2000
34Silverman, Randall H.Connoisseurship of nineteenth and early twentieth century publishers' bookbindingsThe vast majority of historically significant nineteenth- and early-twentieth century publishers' bookbindings reside in the general collections of research libraries. In no way does this minimize the importance of this material historically nor the library's professional obligation to guarantee its...Publishers and publishing; Book Repair Practices2000
35Landesman, Margaret M.Consortia vs reform: creating congruenceThe inability of research libraries to offer the collections their users desire has become more pronounced each year. In response, libraries have moved in two directions: the rapidly growing consortial movement and the movement to advocate and support reforms in scholarly communication. However, if ...2000
36Ikits, MilanCoregistration of pose measurement devices using nonlinear least squares parameter estimationMultimodal visual haptic user interfaces can be made more effective by accurately colocating the workspaces of their components. We have developed a coregistration technique for pose measurement devices based on nonlinear least squares parameter estimation. A reduced quaternion parameterization is u...Coregistration; Pose measurement; Haptic interfaces2000
37Zhang, LixinDesign a DRAM backend for the impulse memory systemThe Impulse Adaptable Memory System is a new memory system that exposes DRAM access patterns not seen in conventional memory systems. Impulse can generate huge number of small DRAM accesses, which will not be handled effectively by a conventional cache-line-size-access-oriented DRAM backend. In this...DRAM; Backend; Impulse memory system; Impulse Adaptable Memory System; Access patterns2000
38Boehme, ChristophDiffusion of hydrogen and deuterium in stack systems of SixNyHz/SixNyDz and crystalline SiH/D-, N-H/D- and Si-H/D-bond density changes were investigated in stacks consisting of a Cz-Si substrate, a thin layer of SiC>2, amorphous deuterated silicon nitride as well as amorphous hydrogenated silicon nitride in order to see if the post deposition anneal of a-SixNyHz layers on crystalline sil...Hydrogenated silicon nitride; Anneal process2000
39Truong, ThanhDirect ab initio dynamics studies of N + H2<-->NH + H reactionKinetics of the N+H2<-->NH+H reaction have been studied using a direct ab initio dynamics method. Potential energy surface for low electronic states have been explored at the QCISD/ cc-pVDZ level of theory. We found the ground-state reaction is N(4S)+H2-->NH(3Σ-)+H. Thermal rate constants for this ...Ab initio dynamics; Potential energy surfaces; Minimum energy path; Ground-state reaction; Rate constants2000
40Shirley, Peter S.Direct Ray tracing of smoothed and displacement mapped trianglesWe present an algorithm for ray tracing displacement maps that requires no additional storage over the base model. Displacement maps are rarely used in ray tracing due to the cost associated with storing and intersecting the displaced geometry. This is unfortunate because displacement maps allow the...Ray tracing displacement maps2000
41Olivera, Baldomero M.Distinction among neuronal subtypes of voltage-activated sodium channels by μ-conotoxin PIIIAThe functional properties of most sodium channels are too similar to permit identification of specific sodium channel types underlying macroscopic current. Such discrimination would be particularly advantageous in the nervous system in which different sodium channel family isoforms are coexpressed i...Conotoxins; m-conotoxin2000
42Balasubramonian, RajeevDynamic memory hierarchy performance optimizationAlthough microprocessor performance continues to increase at a rapid pace, the growing processor-memory speed gap threatens to limit future performance gains. In this paper, we propose a novel configurable cache and TLB as an alternative to conventional two-level hierarchies. This organization le...Microprocessor performance; Processor-memory speed gap2000
43Miller, Joel StevenEffect of thermal annealing on the ferrimagnetic behavior and ordering of the [MnTXPP]+[TCNE].-.solv (X=F, Cl, Br, I; solv = PhMe, CH2Cl2) family of magnets+5,10,15,20-Tetrakis(4-fluorophenyl)porphyrinatomanganese(III) tetracyanoethenide, [MnTFPP][TCNE], 1F, 5,10,15,20-tetrakis(4-bromophenyl)porphyrinatomanganese(III) tetracyanoethenide, [MnTBrPP][TCNE], 1Br, and 5,10,15,20-tetrakis(4-iodophenyl)porphyrinatomanganese(III) tetracyanoethenide, [MnTIPP][T...Magnetic; Coupling2000
44Zhdanov, Michael S.Electromagnetic inversion using quasi-linear approximationThree-dimensional electromagnetic inversion continues to be a challenging problem in electrical exploration. We have recently developed a new approach to the solution of this problem based on quasi-linear approximation of a forward modeling operator. It generates a linear equation with respect to ...Quasi-linear approximation; electromagnetic inversion2000
45Williams, Clayton C.Electron tunneling detected by electrostatic forceA method is introduced for measuring the tunneling of electrons between a specially fabricated scanning probe microscope tip and a surface. The technique is based upon electrostatic force detection of charge as it is transferred to and from a small (10217 F) electrically isolated metallic dot on the...Electrons; Tunneling events; Electrostatic force microscopy2000
46Voth, Gregory AlanElectronic structure calculation of the structures and energies of the three pure polymorphic forms of crystalline HMXThe molecular structures and energetic stabilities of the three pure polymorphic forms of crystalline HMX were calculated using a first-principles electronic-structure method. The computations were performed using the local density approximation in conjunction with localized "fireball" orbitals and ...HMX; Crystalline HMX; Molecular geometry2000
47Cohen, ElaineError bounded approximate reparametrization of NURBS curvesThis paper reports research on solutions to the following reparametrization problem: approximate c(r(t)) by a NURBS where c is a NURBS curve and r may, or may not, be a NURBS function. There are many practical applications of this problem including establishing and exploring correspondence in geomet...Reparametrization; NURBS curve2000
48Wight, Charles AlbertEstimating realistic confidence intervals for the activation energy determined from thermoanalytical measurementsA statistical procedure is proposed for estimating realistic confidence intervals for the activation energy determined by using an advanced isoconversional method. Nine sets of five thermogravimetric measurements have been produced for the process of gassification of ammonium nitrate at five differe...Thermoanalysis; Activation energy; Isoconversional method2000
49Landesman, Bruce M.Ethical Marxism and its radical criticsWilde defends what he calls Ethical Marxism. This is a familiar view, which many refer to as Marxist Humanism. According to Wilde, Marx holds that there is a human essence which involves freedom and the development of each individual's creative potential. This is achievable, however, only under cond...Marxism; Book review2000
50Jaskowski, Troy D.Evaluation of a PCR probe capture assay for the detection of Toxoplasma gondii: incorporation of uracil N-glycosylase for contamination controlToxoplasma gondii is a cyst-forming parasite of clinical relevance in humans primarily because of the neurologic abnormalities it can cause. In some clinical circumstances, it is desirable to detect the pathogen directly. We modified a commercially available Toxoplasma polymerase chain reaction...PCR probe capture assay; Uracil N-glycosylase; UNG2000
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